Black 12C - machine polish, then ceramic coating??

[dank]

I was chatting with a guy from a car valeting, washing, PPF etc company and he said that I could ceramic coat my 12C which would allow it to be much easier to clean, just requiring water over the car to clean. He also said it would give a showroom shine all the time with the ceramic coating. So the process was machine polish out the fine swirls and any light scratches, then apply the ceramic coating. Cost was £350 for all in, any peoples opinions on this, and potentially pitfalls to the coating? Will it start peeling or discolouring over time??? Sounds too good-to be true, showroom shiny black car most of the time!

thanks